teautmann



(No Model.) 2 Sheets-Sheet 2.

W. TRAUTMANN.

' DUST COLLECTOR.

No. 403,798. Patented May 21 1889.

ATTEST. INVENTOR. JQ flVfl/g Mb; Wilhelm Trau'imann 7 '3 flay- N. PETERS. PhMmUthagr-lphar. wmmgm 0.1;

(No-Model.) 2 Sheets-Sheet 1.

W. TRAUTMANN.

DUST OOLLEGTOR.

Patented May 21 1889;

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Wilhelm Traulmann BJ A T T N PETERS, PhnloLiUwgmphsr. Wllblngion. D. C.

UNITED STATES PATENT OFFICE.

\VILHELM TRAUTMAN N, OF BERLIN, GERMANY.

DUST-COLLECTOR.

SPECIFICATION forming part of Letters Patent No. 403,798, dated May 21, 1889.

Application filed October 27, 1887. Renewed March 9, 1889.

$erial No. 302,741.

(No model.) Patented in England October 19,

To all whom it may concern.-

Be it known that I, WILHELM TRAUTMANN, a subject of the Emperor of Germany, and residing at Berlin, Germany, have invented certain new and useful Improvements in Dust- Collectors, (for which a patent hasbeen granted me in Great Britain, October 19, 1887, No. 14,214,) of which the following is a specification, reference being had therein to the accompanying drawings, in which- Figure 1 is a vertical central cross-section of the machine. Fig. 2 is a vertical central longitudinal section. Fig. 3 is a detail of lower air-tubes connecting with the blower. Fig. 4 is a detail of the ratchet.

This invention belongs to that class known as dust-collectors; and the novelty in the present instance consists in the construction and combination of the several parts in the manner hereinafter described, and set out in the claims.

In the accompanying drawings, A denotes the outer case of the machine, and B the inner case. The drum or cylinder 0 is situated inside the case B, and the dust-laden air is drawn through the cloth by means of the suction-fans D, placed on each end of it near to central rings, G, and mounted on and revolved by the shaft F, to which power is communicated by the pulley on the end of said shaft. The drum is mounted in the rings G in the opening d of the case A. Suitable boxes, a, which have ports a on each side of case A, are provided for the fans. The direction of the flow of the air when the fans are in motion is indicated by the arrows, being from the outside to the inside of the drum. In order to regulate in the most desirable way the admission of air entering the outer case at f into the inner cylinder, there are provided openings K in the casingB at proper distance apart, which have flap-valves 70. These valves may have handles, so as to allow them to be operated from the outside of the case. Many or few of these valves can be opened at one time, and in this way the amount of air to be admitted into the inner case regulated at will or entirely cut off. In the small holes 0 in the outer case, A, air-gages may be placed, so as to indicate the amount of air in the case. Letters S in the case A denote peep-holes by which the interior of the machine maybe inspected. The drum or cyhnder is provided with or made up of a series of V-shaped compartments, y.

To clear the dust from the bolting-cloth, there is provided a blowing apparatus, which is constructed and operates as will be clearly understood from the description following. In the central opening of the drum 0 are placed two pipes, U U, upon rubber or leather pillows g and in communication with each other. The tubes R at their upper ends communicate with the pipes U, and their lower enlarged ends (as shown in Fig.2) extend the whole breadth of the blower-case. These lower open ends of said pipes are, as 1nd1- cated in the drawings, situated in reference to the blower D in such a way that the blast of air from the blower is forced into them. The pipes thus communicate with the bellows V.

Between the inner or upper ends of said pipes is an opening, P, extending the length of the drum. As soon as the blower is put in operation the leather of the bellows begins to extend, the valves at the ends of the p1pes opening inward, and when the bellows is full it is compressed by the movement of the rod 1) and the air forced through the openings P, the Valve at its upper end being forced down and open, and thence the air flows down through the passage f f to and into the compartments y of the inner cylinder or drum, 0. By this means the dust is blown from the bolting-cloth and falls through the lower opening, T, of the outer case into any suitable receptacle below, while the air flows in the direction of the arrows f round the downwardly-projecting walls t t on each side into the drum. The bellows are operated by means of the shaft H and suitable crank and other connections, as plainly indicated in Figs. 1 and 2. v

In operating the machine the shaft F will make about five hundred revolutions per m1nute, while the shaft H will revolve in the same but seven (7) times. In order that at each movement of the bellows a newcompartment, y, shall be placed under the opening P, the connecting-rod has a lever or pawl, b, which engages with the cogs or ratchets .2 on the pc- 2. In a dust-collector, as described, the drum 0, constructed and intermittently rotated, as described, and combined with the pipes U, the tubes R, and the bellows V, the shaft. 1-1 and rod 4 operating said bellows, and the fan D, substantially as and for the purposes set forth.

W'ILHELM TRAUTMANN.

Witn esses TH. LORENS, B. ROI. 

